1.allow sb.to do sth.允许某人做某事

Please allow me to introduce myself.

2.my name is…/I'm…我的名字是……

I'm Li Hua.

3.this is the first time to do sth.这是第一次做某事

This⌒is the firs(t)time to have English class.

4.I'm lucky to do sth.我很幸运做某事

I'm lucky to be your teacher

5.glad to do sth.很高兴做某事

Glad to meet you. j312/4Tkp5ctmMMCE3cFgWiBvyPi2bB51b9N58E0VVlmru5qmeZJw9t1ji9iFd4z